December 2021 in “Journal of clinical images and medical case reports” PRP generally shows better results for hair regrowth than mesotherapy, but more research is needed.
April 2007 in “CRC Press eBooks” Certain vitamins in wrong amounts, alcohol abuse, metals, and other toxins can cause serious brain and nerve damage.
September 2022 in “International Journal of Trichology” Trichoscopic measurements help determine the severity of female pattern hair loss.